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Sard 650 Injectors And Microtech Ecu.

PORTS

By PORTS,
in Engines & Forced Induction

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PORTS Proficient

PORTS

Posted
Posted

I have just had my VG30DETT rebuilt and have added Sard 650 injectors.

Originally used stock 320's and on the dyno it made 268.5 @ 16psi with a good fuel map.

Now I need to change the fuel (flow?) % , as the sards are close to twice the size,

so I can get it to the tuners, about 30km's.

I use a Microtech LTX12 with the in-car dash display and I was wondering if

anyone has experience with these ecu's and/or can offer some advise.

Cheers. :(

rob82 Mentor

rob82

Posted
Posted
I have just had my VG30DETT rebuilt and have added Sard 650 injectors.

Originally used stock 320's and on the dyno it made 268.5 @ 16psi with a good fuel map.

Now I need to change the fuel (flow?) % , as the sards are close to twice the size,

so I can get it to the tuners, about 30km's.

I use a Microtech LTX12 with the in-car dash display and I was wondering if

anyone has experience with these ecu's and/or can offer some advise.

Cheers. :P

You can take a global percentage out, its called the Mix trim. Because they are twice as big doesn't mean they flow twice as much at low pulse widths so just take out 30% and see how you go. You might struggle with those injectors using a microtech economy wise.

PORTS Proficient

PORTS

Posted
  • Author
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Thanks guys for the heads up.

Satanic, these are side feeds and high imp, I think yours would be top feeders and low imp.

don't forget to get the lag time figure for them too.

Richard, WTF is the lag time? :)

Beer Baron Grand Master

Beer Baron

Posted
Posted

lag time/latencey/response time is meaured in mili seconds. different injectors have a different lag time. you need to find out what stock is, and what the sards are. or in your case you may just need the figures for the sards. it's important that they have the correct lag time inputted into the ecu to run properly.

Adriano Grand Master

Adriano

Posted
Posted

Microtech doesn't have a lag time adjustment, you just tune it in milliseconds

lag time/latencey/response time is meaured in mili seconds. different injectors have a different lag time. you need to find out what stock is, and what the sards are. or in your case you may just need the figures for the sards. it's important that they have the correct lag time inputted into the ecu to run properly.
Beer Baron Grand Master

Beer Baron

Posted
Posted
Microtech doesn't have a lag time adjustment, you just tune it in milliseconds

cheers. so does that mean you just tune and compensate for it, or do you just need to enter in the lag time figure for the injectors you are using?

PORTS Proficient

PORTS

Posted
  • Author
Posted

Thanks Beer Baron and Adriano, I think I get it, I'll speak to Boosted Zed.

Adrian, the Sards cost me $660 delivered through Greenline and

the collars were $120 for the set including o-rings and hex bolts in

a G/B on aus300zx forum. :D

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